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Reconstruction of radiation dose received by diagnostic radiologic technologists in Korea

Authors
Choi, Y.Kim, J.Lee, J.J.Jun, J.K.Lee, W.J.
Issue Date
2016
Publisher
Korean Society for Preventive Medicine
Keywords
Dosimetry; Historical reconstruction; Occupational exposure; Radiation; Workers
Citation
Journal of Preventive Medicine and Public Health, v.49, no.5, pp.288 - 300
Indexed
SCOPUS
KCI
Journal Title
Journal of Preventive Medicine and Public Health
Volume
49
Number
5
Start Page
288
End Page
300
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/91408
DOI
10.3961/jpmph.16.064
ISSN
1975-8375
Abstract
Objectives: Diagnostic medical radiation workers in Korea have been officially monitored for their occupational radiation doses since 1996. The purpose of this study was to design models for reconstructing unknown individual radiation doses to which diagnostic radiation technologists were exposed before 1996. Methods: Radiation dose reconstruction models were developed by using cross-sectional survey data and the personal badge doses of 8167 radiologic technologists. The models included calendar year and age as predictors, and the participants were grouped into six categories according to their sex and facility type. The annual doses between 1971 and 1995 for those who were employed before 1996 were estimated using these models. Results: The calendar year and age were inversely related to the estimated radiation doses in the models of all six groups. The annual median estimated doses decreased from 9.45 mSv in 1971 to 1.26 mSv in 1995, and the associated dose variation also decreased with time. The estimated median badge doses from 1996 (1.22 mSv) to 2011 (0.30 mSv) were similar to the measured doses (1.68 mSv to 0.21 mSv) for the same years. Similar results were observed for all six groups. Conclusions: The reconstruction models developed in this study may be useful for estimating historical occupational radiation doses received by medical radiologic technologists in Korea. © 2016 The Korean Society for Preventive Medicine.
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